Il 10/05/2022 15:39, Remi Forax ha scritto:
You can change the Executor (it's one parameter of the builder) to use whatever
executors you want so you can shutdown that executor as you want.
This should fixed (1).
Also once you update to Java 19/21, it seems a good scenario to test the
executor that spawn virtual threads instead of platform threads.
I am afraid build 19-ea+21-1482 doesn't yet include virtual threads, but
it's getting close.
Be careful though. The HttpClient.Builder has an enticing method
HttpClient.Builder executor​(Executor executor)
which "Sets the executor to be used for asynchronous and dependent tasks."
What this means is anyone's guess, but I know from Heinz Kabutz that
it's the executor used for the internal workings of the selector
mechanism. See https://bugs.openjdk.java.net/browse/JDK-8204679. I don't
think making that a virtual thread does much good.
If you want to spawn a virtual thread to process the request (a good
idea if the processing blocks), you should use
client.sendAsync(request, responseBodyHandler)
.thenApplyAsync(HttpResponse::body, executor);
where executor provides virtual threads.
Cheers,
Cay
--
Cay S. Horstmann | http://horstmann.com | mailto:c...@horstmann.com
